Pick out the correct statement(s)

In solid state N2O5 exist as   [NO2+][NO3-]  therefore hybridisation of each nitrogen is sp and sp2 respectively.In gaseous state N2O5 exists as therefore hybridisation of each nitrogen is sp2.N2O5 is called anhydride of nitric acid because in reaction with H2O, N2O5 forms nitric acid H2O + N2O5  2HNO3.